I have installed your Fancy Product Designer.
How can I add my own fonts? (Please see attachment)
Only this fonts are available for the users.
that doesn't help at all...wp can't upload ttff. files
You have to use FTP to upload the .ttf files to the following path:
Create a folder "fpd_fonts" in wp-content/uploads/ and upload all your ttf files there.
I added the fonts to the directory and it is showing up, however it's not the actual font. Its like a standard times roman.